Improvement in water-heaters and steam-generators



GEORGE M. wooDwARD. Water-Hemer and Steam --Generators- PatentedJuner18,v1872.

UNITED STATES PATENT FFICE.

GEORGE M. WOODWARD, OF NEW` YORK, N. Y.

IMPROVEMENT IN WATER-HEATERS ANDLSTEAM-GENERATORS.

Specification forming part of Letters Patent No. 128,086, dated June18,1872.

Speciiication describing a new and useful Improvement in Water-Heaterand Generator, invented by GEORGE M. WooDwARD, of the city, county, andState of New York.

This invention relates to apparatus for heatingbuildin gs by watercirculations or by steam, and for generating steam tor all purposes; andconsists in a chamber of two compartments and a series of water-tubesarranged in pairs, each pair being connected by a return-chamber andarranged in a iire-boX or arch, substantially as hereinafter more fullydescribed.

In the accompanying drawing, Figure l represents a vertical longitudinalsection of the apparatus taken on the line x w of Fig. 2. Fig. 2 is aplan View, partly in section, as on the line y y of Fig. l. Fig. 3'is avertical section of Fig. l on the line z z.

Similar letters of reference indicate corresponding parts.

This heater and generator is composed of the double water-chamber A anda series of double tubes, C, one within the other, the parts of eachtubebeing connected together at one end by return-chambers D. Their otherends are connected with the water-chamber A. B is a vertical partition,which divides the waterchamber into two compartments, marked E and F. Gis an inner water-tube, and H the outer water-tube, which form one ofthe series of double tubes O. There may be more or less in number ofthese double tubes, according to the purpose for which the generator orheater is intended. The return-chamber D screws onto the outer tube H.This chamber has a broken partition, I, by which the inner tube G issupported, as seen in Figs. l and 3. The other end of the tube G passesthrough the partition B, connecting with the compartment E, and issupported in a position central with the outer tube by these twopartitions I and v B. The outer tube H passes through the wall of thewater-chamber A andconnects with the compartment F thereof. J is the{ire-grate.

In the application of this apparatus to the heating of buildings theWater is made to circulate, as indicated by the arrows, K being theinduction and L the eduction pipe. These pipes are arranged so that twoor more of these heaters or generators may be connectedplaced one abovethe other. In this manner its size and capacity may be increased to anydesired extent. d

M is the annular space, through which the water is returned from each ofthe returnchambers D. -The heat and gaseous products of combustion passupward and surround these tubes, each outer tube being heating orgenerating surface.

In applying the apparatus as a steam-generator the pipe L is connectedwith a drum, not shown in the drawing, 'from which the steam is taken.The apparatus is placed (in whole orlin part) in a properly-constructedarch, the double tubes being supported thereby and by each other,preferably in an inclined position.

I do not limit or conine myself to the precise form or arrangement ofany of the parts described, as they may be varied in many ways withoutdeparting from my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The water-chamber A, connected substantially asdescribed, in combination with the tubes G and H and return-chamber D,when the same are arranged to operate as and for the purposes described.

2. The annular space m and returnchamber D, combined in a water-heateror steam-generator, as described.

3. The induction-pipe K and the eductionpipe L, in combinationwith thecompartments E and F, as and for the purposes described.

4. The combination of the compartments E F with the tubes G H, as shownand described.

5. The partition I in the return-chamber, as and for the purposesdescribed.

GEORGE M. WOODWARD.

- Vitnesses:

T. B. Moslima; GEO. W. MABEE.

